excellent points! like many things in cycling, its not about absolute watts.
i gave the masters hour serious thought a few years ago and did a lot of testing. its fucking hard to get the effort right, in and out of the corners there are wattage changes, holding the line gets hard, RPE lies to you, etc etc.
this will take dedication. veal's strong and very experienced on the track. that said, i don't think veal did it in optimal conditions at all, or at the best track on the best day, but he had reasons to do it there and then.